| Paper: | SS-11.4 | ||
| Session: | Lossless Coding Techniques for Audio Signals | ||
| Time: | Friday, May 21, 14:00 - 14:20 | ||
| Presentation: | Special Session Lecture | ||
| Topic: | Special Sessions: Lossless Coding Technologies for Audio Signals | ||
| Title: | A LOSSLESS AUDIO COMPRESSION SCHEME WITH RANDOM ACCESS PROPERTY | ||
| Authors: | Dai Yang; University of Southern California | ||
| Takehiro Moriya; NTT DoCoMo | |||
| Tilman Liebchen; Technical University of Berlin | |||
| Abstract: | In this paper, we propose an efficient lossless coding algorithm that not only handles both PCM format data and IEEE floating-point format data, but also provides end users with random access property. In the worst-case scenario, where the proposed algorithm was applied to artificially generated full 32-bit floating-point sound files with 48- or 96-kHz sampling frequencies, an average compression rate of more than 1.5 and 1.7, respectively, was still achieved, which is much better than the average compression rate of less than 1.1 achieved by general purpose lossless coding algorithm gzip. Moreover, input sound files with samples' magnitude out-of-range can also be perfectly reconstructed by our algorithm. | ||
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